Power Electronics Dynamic equalising circuit is useful to limit dV / dt of SCR. to limit di / dt of SCR. both B and C. for voltage equalisation. to limit dV / dt of SCR. to limit di / dt of SCR. both B and C. for voltage equalisation. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Thyristor can be protected from over voltages by using voltage clamping device. heat sink. fuse. snubber circuit. voltage clamping device. heat sink. fuse. snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics CB used for over current protection of thyristor operates when the fault current is of short duration. of long period. neither (A) nor (B). both (A) and (B). of short duration. of long period. neither (A) nor (B). both (A) and (B). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the intrinsic stand off ratio ___________. Essentially remains the same Decreases None of these Increases Essentially remains the same Decreases None of these Increases ANSWER DOWNLOAD EXAMIANS APP
Power Electronics 4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is 0.7. 0.75. 0.2. 0.25. 0.7. 0.75. 0.2. 0.25. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac is a ___________ switch Mechanical Unidirectional Bidirectional None of these Mechanical Unidirectional Bidirectional None of these ANSWER DOWNLOAD EXAMIANS APP
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